Fix links to parts pages from Japanese workers pages

[thunderrabbit]

https://www.marbletrack3.com/workers/reversible/ page shows a lot of parts that Reversible Guy made.

But Reversible Guy's Japanese page does not work. https://www.marbletrack3.com/ja/workers/reversible/

For example, this page https://www.marbletrack3.com/ja/parts/outer_spiral/ correctly says it was made by

• くるりん
• Gチョッピー 斬り師
• ノリ担当

But clicking on their names does not show that they made anything.

N.B. くるりん is Japanese name for Reversible Guy